1/* $OpenBSD: fld_max.c,v 1.7 2023/10/17 09:52:10 nicm Exp $ */ 2/**************************************************************************** 3 * Copyright 2019-2020,2021 Thomas E. Dickey * 4 * Copyright 1998-2012,2013 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31/**************************************************************************** 32 * Author: Juergen Pfeifer, 1995,1997 * 33 ****************************************************************************/ 34 35#include "form.priv.h" 36 37MODULE_ID("$Id: fld_max.c,v 1.7 2023/10/17 09:52:10 nicm Exp $") 38 39/*--------------------------------------------------------------------------- 40| Facility : libnform 41| Function : int set_max_field(FIELD *field, int maxgrow) 42| 43| Description : Set the maximum growth for a dynamic field. If maxgrow=0 44| the field may grow to any possible size. 45| 46| Return Values : E_OK - success 47| E_BAD_ARGUMENT - invalid argument 48+--------------------------------------------------------------------------*/ 49FORM_EXPORT(int) 50set_max_field(FIELD *field, int maxgrow) 51{ 52 T((T_CALLED("set_max_field(%p,%d)"), (void *)field, maxgrow)); 53 54 if (!field || (maxgrow < 0)) 55 RETURN(E_BAD_ARGUMENT); 56 else 57 { 58 bool single_line_field = Single_Line_Field(field); 59 60 if (maxgrow > 0) 61 { 62 if (((single_line_field && (maxgrow < field->dcols)) || 63 (!single_line_field && (maxgrow < field->drows))) && 64 !Field_Has_Option(field, O_INPUT_LIMIT)) 65 RETURN(E_BAD_ARGUMENT); 66 } 67 field->maxgrow = maxgrow; 68 /* shrink */ 69 if (maxgrow > 0 && Field_Has_Option(field, O_INPUT_LIMIT) && 70 field->dcols > maxgrow) 71 field->dcols = maxgrow; 72 ClrStatus(field, _MAY_GROW); 73 if (!((unsigned)field->opts & O_STATIC)) 74 { 75 if ((maxgrow == 0) || 76 (single_line_field && (field->dcols < maxgrow)) || 77 (!single_line_field && (field->drows < maxgrow))) 78 SetStatus(field, _MAY_GROW); 79 } 80 } 81 RETURN(E_OK); 82} 83 84/* fld_max.c ends here */ 85